A system and method provides a broadband network node for a best effort network such as the Internet or intranets which supports the inexpensive and rapid deployment of services to the best efforts network. Separate data path and control path mechanisms allow high-speed data transfers with parallel processing flows for the data path that are controlled across data flows by the control path. Packets are classified, modified and shaped to enable the service on the network with an accountant to track packet traffic for control and billing purposes. A series of processing blades perform a modification function for each blade that processes packets according to classifications. The processing blades are modular and scalable for insertion in the broad band switch to rapidly adapt the broadband network node for new services.